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A series of aerodynamics experiments were conducted to identify the effects of lateral leakages to the wind pressures distribution on the porous wall of buildings. The wind pressures distribution on the porous exterior walls of buildings had been studied by aerodynamic experiments in wind tunnel. The results showed, the lateral leakage will affects the net pressures of walls and especially for the two side leakage. With the lateral leakage, the net pressures on porous exterior walls might be increase for the gap ratio over 10%. But if the leakage location were on the top of wall, the increment of net pressure would not be evident. In general, the lateral leakage would reduce the wind loadings on exterior wall with enough gap ratio. These factors in order of effect will be “two side and top opening”, “two side opening” and “top opening”. For variant opening ratio of the porous exterior walls, net pressures on walls would be reduced in the larger opening ratio cases. In this study for the cases of opening ratio larger than 2.4%, the wind pressures will be reduced evidently. Keywords—wind loadings; double-skin facade; wind tunnel tests

Wind Pressures Distribution on Porous Exterior Walls of Buildings Double Skin facade System